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-rw-r--r--drivers/acpi/acpi_video.c27
-rw-r--r--drivers/acpi/acpi_watchdog.c59
-rw-r--r--drivers/acpi/arm64/iort.c111
-rw-r--r--drivers/acpi/button.c24
-rw-r--r--drivers/acpi/custom_method.c2
-rw-r--r--drivers/acpi/fan.c2
-rw-r--r--drivers/acpi/nfit/core.c706
-rw-r--r--drivers/acpi/nfit/mce.c5
-rw-r--r--drivers/acpi/nfit/nfit.h22
-rw-r--r--drivers/acpi/pci_root.c21
-rw-r--r--drivers/acpi/processor_perflib.c11
-rw-r--r--drivers/acpi/scan.c35
-rw-r--r--drivers/acpi/sleep.c13
-rw-r--r--drivers/amba/bus.c17
-rw-r--r--drivers/android/binder.c8
-rw-r--r--drivers/ata/ahci.c6
-rw-r--r--drivers/ata/ahci.h8
-rw-r--r--drivers/ata/ahci_mvebu.c56
-rw-r--r--drivers/ata/ahci_qoriq.c2
-rw-r--r--drivers/ata/ahci_xgene.c4
-rw-r--r--drivers/ata/libahci.c20
-rw-r--r--drivers/ata/libahci_platform.c24
-rw-r--r--drivers/ata/libata-core.c6
-rw-r--r--drivers/ata/libata-eh.c4
-rw-r--r--drivers/ata/sata_highbank.c2
-rw-r--r--drivers/ata/sata_sil24.c4
-rw-r--r--drivers/atm/iphase.c4
-rw-r--r--drivers/base/dma-coherent.c5
-rw-r--r--drivers/base/dma-mapping.c6
-rw-r--r--drivers/base/firmware_loader/fallback.c4
-rw-r--r--drivers/base/firmware_loader/fallback.h2
-rw-r--r--drivers/base/memory.c47
-rw-r--r--drivers/base/node.c24
-rw-r--r--drivers/block/brd.c1
-rw-r--r--drivers/block/drbd/drbd_main.c3
-rw-r--r--drivers/block/drbd/drbd_nl.c4
-rw-r--r--drivers/block/loop.c186
-rw-r--r--drivers/block/loop.h1
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c8
-rw-r--r--drivers/block/nbd.c8
-rw-r--r--drivers/block/null_blk.c124
-rw-r--r--drivers/block/paride/pcd.c2
-rw-r--r--drivers/block/rbd.c2558
-rw-r--r--drivers/block/rsxx/dev.c6
-rw-r--r--drivers/block/skd_main.c4
-rw-r--r--drivers/block/swim.c49
-rw-r--r--drivers/block/swim3.c6
-rw-r--r--drivers/block/umem.c7
-rw-r--r--drivers/block/xen-blkfront.c10
-rw-r--r--drivers/block/zram/zram_drv.c17
-rw-r--r--drivers/block/zram/zram_drv.h17
-rw-r--r--drivers/bus/Kconfig45
-rw-r--r--drivers/bus/Makefile2
-rw-r--r--drivers/bus/arm-cci.c1763
-rw-r--r--drivers/bus/hisi_lpc.c615
-rw-r--r--drivers/bus/ti-sysc.c526
-rw-r--r--drivers/cdrom/cdrom.c5
-rw-r--r--drivers/cdrom/gdrom.c3
-rw-r--r--drivers/char/random.c172
-rw-r--r--drivers/char/rtc.c83
-rw-r--r--drivers/char/tpm/tpm-interface.c158
-rw-r--r--drivers/char/tpm/tpm.h32
-rw-r--r--drivers/char/tpm/tpm2-cmd.c62
-rw-r--r--drivers/char/tpm/tpm_crb.c113
-rw-r--r--drivers/char/tpm/tpm_tis_core.c4
-rw-r--r--drivers/char/tpm/tpm_tis_core.h8
-rw-r--r--drivers/char/virtio_console.c157
-rw-r--r--drivers/clk/Kconfig45
-rw-r--r--drivers/clk/Makefile9
-rw-r--r--drivers/clk/bcm/clk-bcm2835.c8
-rw-r--r--drivers/clk/clk-cs2000-cp.c4
-rw-r--r--drivers/clk/clk-divider.c58
-rw-r--r--drivers/clk/clk-gpio.c4
-rw-r--r--drivers/clk/clk-mux.c85
-rw-r--r--drivers/clk/clk-scmi.c194
-rw-r--r--drivers/clk/clk-si544.c411
-rw-r--r--drivers/clk/clk-stm32f4.c14
-rw-r--r--drivers/clk/clk-stm32mp1.c2109
-rw-r--r--drivers/clk/clk.c92
-rw-r--r--drivers/clk/davinci/Makefile21
-rw-r--r--drivers/clk/davinci/da8xx-cfgchip.c790
-rw-r--r--drivers/clk/davinci/pll-da830.c70
-rw-r--r--drivers/clk/davinci/pll-da850.c212
-rw-r--r--drivers/clk/davinci/pll-dm355.c79
-rw-r--r--drivers/clk/davinci/pll-dm365.c145
-rw-r--r--drivers/clk/davinci/pll-dm644x.c80
-rw-r--r--drivers/clk/davinci/pll-dm646x.c84
-rw-r--r--drivers/clk/davinci/pll.c899
-rw-r--r--drivers/clk/davinci/pll.h141
-rw-r--r--drivers/clk/davinci/psc-da830.c116
-rw-r--r--drivers/clk/davinci/psc-da850.c156
-rw-r--r--drivers/clk/davinci/psc-dm355.c88
-rw-r--r--drivers/clk/davinci/psc-dm365.c96
-rw-r--r--drivers/clk/davinci/psc-dm644x.c83
-rw-r--r--drivers/clk/davinci/psc-dm646x.c80
-rw-r--r--drivers/clk/davinci/psc.c551
-rw-r--r--drivers/clk/davinci/psc.h108
-rw-r--r--drivers/clk/hisilicon/Makefile2
-rw-r--r--drivers/clk/hisilicon/clk-hisi-phase.c121
-rw-r--r--drivers/clk/hisilicon/clk.c26
-rw-r--r--drivers/clk/hisilicon/clk.h19
-rw-r--r--drivers/clk/hisilicon/crg-hi3516cv300.c2
-rw-r--r--drivers/clk/hisilicon/crg-hi3798cv200.c100
-rw-r--r--drivers/clk/imx/Makefile1
-rw-r--r--drivers/clk/imx/clk-busy.c4
-rw-r--r--drivers/clk/imx/clk-imx6sll.c340
-rw-r--r--drivers/clk/imx/clk-imx6sx.c14
-rw-r--r--drivers/clk/imx/clk-imx6ul.c5
-rw-r--r--drivers/clk/imx/clk-imx7d.c116
-rw-r--r--drivers/clk/imx/clk-pllv2.c6
-rw-r--r--drivers/clk/imx/clk.h14
-rw-r--r--drivers/clk/keystone/sci-clk.c380
-rw-r--r--drivers/clk/mediatek/Kconfig6
-rw-r--r--drivers/clk/mediatek/Makefile1
-rw-r--r--drivers/clk/mediatek/clk-mt2701-aud.c186
-rw-r--r--drivers/clk/mediatek/clk-mt2701.c15
-rw-r--r--drivers/clk/mediatek/clk-mt2712.c69
-rw-r--r--drivers/clk/mediatek/clk-mt7622-aud.c15
-rw-r--r--drivers/clk/meson/Kconfig9
-rw-r--r--drivers/clk/meson/Makefile5
-rw-r--r--drivers/clk/meson/axg.c955
-rw-r--r--drivers/clk/meson/axg.h12
-rw-r--r--drivers/clk/meson/clk-audio-divider.c63
-rw-r--r--drivers/clk/meson/clk-cpu.c178
-rw-r--r--drivers/clk/meson/clk-mpll.c125
-rw-r--r--drivers/clk/meson/clk-pll.c306
-rw-r--r--drivers/clk/meson/clk-regmap.c175
-rw-r--r--drivers/clk/meson/clk-regmap.h111
-rw-r--r--drivers/clk/meson/clkc.h107
-rw-r--r--drivers/clk/meson/gxbb-aoclk-regmap.c46
-rw-r--r--drivers/clk/meson/gxbb-aoclk.c20
-rw-r--r--drivers/clk/meson/gxbb-aoclk.h13
-rw-r--r--drivers/clk/meson/gxbb.c1591
-rw-r--r--drivers/clk/meson/gxbb.h14
-rw-r--r--drivers/clk/meson/meson8b.c706
-rw-r--r--drivers/clk/meson/meson8b.h17
-rw-r--r--drivers/clk/mvebu/armada-38x.c14
-rw-r--r--drivers/clk/mvebu/cp110-system-controller.c94
-rw-r--r--drivers/clk/nxp/clk-lpc32xx.c1
-rw-r--r--drivers/clk/qcom/clk-regmap-divider.c20
-rw-r--r--drivers/clk/qcom/clk-rpm.c79
-rw-r--r--drivers/clk/qcom/clk-smd-rpm.c9
-rw-r--r--drivers/clk/qcom/gcc-msm8996.c8
-rw-r--r--drivers/clk/renesas/Kconfig13
-rw-r--r--drivers/clk/renesas/Makefile2
-rw-r--r--drivers/clk/renesas/clk-div6.c22
-rw-r--r--drivers/clk/renesas/clk-mstp.c4
-rw-r--r--drivers/clk/renesas/clk-r8a73a4.c11
-rw-r--r--drivers/clk/renesas/clk-r8a7740.c8
-rw-r--r--drivers/clk/renesas/clk-rcar-gen2.c17
-rw-r--r--drivers/clk/renesas/clk-rz.c4
-rw-r--r--drivers/clk/renesas/clk-sh73a0.c20
-rw-r--r--drivers/clk/renesas/r8a7743-cpg-mssr.c2
-rw-r--r--drivers/clk/renesas/r8a7745-cpg-mssr.c2
-rw-r--r--drivers/clk/renesas/r8a7790-cpg-mssr.c2
-rw-r--r--drivers/clk/renesas/r8a7791-cpg-mssr.c2
-rw-r--r--drivers/clk/renesas/r8a7792-cpg-mssr.c2
-rw-r--r--drivers/clk/renesas/r8a7794-cpg-mssr.c2
-rw-r--r--drivers/clk/renesas/r8a7795-cpg-mssr.c2
-rw-r--r--drivers/clk/renesas/r8a7796-cpg-mssr.c2
-rw-r--r--drivers/clk/renesas/r8a77965-cpg-mssr.c334
-rw-r--r--drivers/clk/renesas/r8a77980-cpg-mssr.c227
-rw-r--r--drivers/clk/renesas/rcar-gen3-cpg.c143
-rw-r--r--drivers/clk/renesas/rcar-gen3-cpg.h2
-rw-r--r--drivers/clk/renesas/renesas-cpg-mssr.c12
-rw-r--r--drivers/clk/renesas/renesas-cpg-mssr.h2
-rw-r--r--drivers/clk/rockchip/clk-mmc-phase.c78
-rw-r--r--drivers/clk/rockchip/clk-rk3228.c2
-rw-r--r--drivers/clk/rockchip/clk-rk3328.c83
-rw-r--r--drivers/clk/rockchip/clk-rk3399.c5
-rw-r--r--drivers/clk/rockchip/clk.c22
-rw-r--r--drivers/clk/samsung/Makefile2
-rw-r--r--drivers/clk/samsung/clk-exynos-audss.c4
-rw-r--r--drivers/clk/samsung/clk-exynos3250.c114
-rw-r--r--drivers/clk/samsung/clk-exynos4.c103
-rw-r--r--drivers/clk/samsung/clk-exynos5-subcmu.c189
-rw-r--r--drivers/clk/samsung/clk-exynos5-subcmu.h26
-rw-r--r--drivers/clk/samsung/clk-exynos5250.c111
-rw-r--r--drivers/clk/samsung/clk-exynos5260.c90
-rw-r--r--drivers/clk/samsung/clk-exynos5410.c20
-rw-r--r--drivers/clk/samsung/clk-exynos5420.c189
-rw-r--r--drivers/clk/samsung/clk-exynos5433.c121
-rw-r--r--drivers/clk/samsung/clk-exynos7.c2
-rw-r--r--drivers/clk/samsung/clk-pll.h48
-rw-r--r--drivers/clk/samsung/clk-s3c2410.c148
-rw-r--r--drivers/clk/samsung/clk-s3c2412.c25
-rw-r--r--drivers/clk/samsung/clk-s3c2443.c55
-rw-r--r--drivers/clk/samsung/clk-s3c64xx.c17
-rw-r--r--drivers/clk/socfpga/Makefile9
-rw-r--r--drivers/clk/socfpga/clk-gate-s10.c125
-rw-r--r--drivers/clk/socfpga/clk-periph-s10.c149
-rw-r--r--drivers/clk/socfpga/clk-pll-s10.c146
-rw-r--r--drivers/clk/socfpga/clk-s10.c345
-rw-r--r--drivers/clk/socfpga/clk.h4
-rw-r--r--drivers/clk/socfpga/stratix10-clk.h80
-rw-r--r--drivers/clk/sprd/sc9860-clk.c76
-rw-r--r--drivers/clk/sunxi-ng/Kconfig12
-rw-r--r--drivers/clk/sunxi-ng/Makefile1
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun50i-h6.c1211
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun50i-h6.h56
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun8i-h3.c32
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun8i-h3.h4
-rw-r--r--drivers/clk/sunxi-ng/ccu_nkmp.c58
-rw-r--r--drivers/clk/sunxi-ng/ccu_nkmp.h2
-rw-r--r--drivers/clk/sunxi-ng/ccu_nm.c7
-rw-r--r--drivers/clk/sunxi-ng/ccu_nm.h27
-rw-r--r--drivers/clk/tegra/clk-emc.c2
-rw-r--r--drivers/clk/tegra/clk-pll.c2
-rw-r--r--drivers/clk/tegra/clk-tegra-periph.c2
-rw-r--r--drivers/clk/tegra/clk-tegra-super-gen4.c8
-rw-r--r--drivers/clk/tegra/clk-tegra114.c4
-rw-r--r--drivers/clk/tegra/clk-tegra124.c9
-rw-r--r--drivers/clk/tegra/clk-tegra20.c24
-rw-r--r--drivers/clk/tegra/clk-tegra210.c361
-rw-r--r--drivers/clk/tegra/clk-tegra30.c15
-rw-r--r--drivers/clk/tegra/clk.h7
-rw-r--r--drivers/clk/ti/clk.c38
-rw-r--r--drivers/clk/ti/clock.h13
-rw-r--r--drivers/clk/ti/divider.c26
-rw-r--r--drivers/clk/ti/mux.c13
-rw-r--r--drivers/clk/uniphier/clk-uniphier-sys.c25
-rw-r--r--drivers/clk/ux500/Makefile2
-rw-r--r--drivers/clk/ux500/abx500-clk.c16
-rw-r--r--drivers/clk/ux500/u8540_clk.c597
-rw-r--r--drivers/clk/ux500/u9540_clk.c18
-rw-r--r--drivers/clk/versatile/clk-vexpress-osc.c5
-rw-r--r--drivers/clocksource/Kconfig11
-rw-r--r--drivers/clocksource/Makefile2
-rw-r--r--drivers/clocksource/timer-imx-tpm.c45
-rw-r--r--drivers/clocksource/timer-npcm7xx.c215
-rw-r--r--drivers/clocksource/timer-ti-dm.c1000
-rw-r--r--drivers/cpufreq/Kconfig.arm22
-rw-r--r--drivers/cpufreq/Makefile1
-rw-r--r--drivers/cpufreq/armada-37xx-cpufreq.c2
-rw-r--r--drivers/cpufreq/brcmstb-avs-cpufreq.c323
-rw-r--r--drivers/cpufreq/cppc_cpufreq.c61
-rw-r--r--drivers/cpufreq/freq_table.c14
-rw-r--r--drivers/cpufreq/intel_pstate.c1
-rw-r--r--drivers/cpufreq/powernv-cpufreq.c14
-rw-r--r--drivers/cpufreq/scmi-cpufreq.c256
-rw-r--r--drivers/cpufreq/ti-cpufreq.c2
-rw-r--r--drivers/cpuidle/cpuidle.c10
-rw-r--r--drivers/cpuidle/governors/ladder.c3
-rw-r--r--drivers/cpuidle/governors/menu.c113
-rw-r--r--drivers/crypto/qat/qat_common/.gitignore1
-rw-r--r--drivers/dax/Kconfig5
-rw-r--r--drivers/dax/device.c50
-rw-r--r--drivers/dax/pmem.c18
-rw-r--r--drivers/dax/super.c15
-rw-r--r--drivers/dma/Kconfig12
-rw-r--r--drivers/dma/Makefile2
-rw-r--r--drivers/dma/at_xdmac.c4
-rw-r--r--drivers/dma/dmatest.c16
-rw-r--r--drivers/dma/dw-axi-dmac/Makefile1
-rw-r--r--drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c1008
-rw-r--r--drivers/dma/dw-axi-dmac/dw-axi-dmac.h334
-rw-r--r--drivers/dma/edma.c6
-rw-r--r--drivers/dma/imx-sdma.c21
-rw-r--r--drivers/dma/mediatek/Kconfig13
-rw-r--r--drivers/dma/mediatek/Makefile1
-rw-r--r--drivers/dma/mediatek/mtk-hsdma.c1056
-rw-r--r--drivers/dma/pl330.c6
-rw-r--r--drivers/dma/qcom/bam_dma.c59
-rw-r--r--drivers/dma/sh/rcar-dmac.c13
-rw-r--r--drivers/dma/stm32-dma.c287
-rw-r--r--drivers/edac/Kconfig7
-rw-r--r--drivers/edac/edac_mc.c41
-rw-r--r--drivers/edac/edac_mc_sysfs.c26
-rw-r--r--drivers/edac/sb_edac.c12
-rw-r--r--drivers/edac/skx_edac.c67
-rw-r--r--drivers/firmware/Kconfig34
-rw-r--r--drivers/firmware/Makefile1
-rw-r--r--drivers/firmware/arm_scmi/Makefile5
-rw-r--r--drivers/firmware/arm_scmi/base.c253
-rw-r--r--drivers/firmware/arm_scmi/bus.c221
-rw-r--r--drivers/firmware/arm_scmi/clock.c343
-rw-r--r--drivers/firmware/arm_scmi/common.h105
-rw-r--r--drivers/firmware/arm_scmi/driver.c871
-rw-r--r--drivers/firmware/arm_scmi/perf.c481
-rw-r--r--drivers/firmware/arm_scmi/power.c221
-rw-r--r--drivers/firmware/arm_scmi/scmi_pm_domain.c129
-rw-r--r--drivers/firmware/arm_scmi/sensors.c291
-rw-r--r--drivers/firmware/arm_scpi.c211
-rw-r--r--drivers/firmware/broadcom/Kconfig1
-rw-r--r--drivers/firmware/broadcom/bcm47xx_sprom.c18
-rw-r--r--drivers/firmware/dmi_scan.c47
-rw-r--r--drivers/firmware/edd.c8
-rw-r--r--drivers/firmware/meson/meson_sm.c25
-rw-r--r--drivers/firmware/qemu_fw_cfg.c291
-rw-r--r--drivers/firmware/tegra/bpmp.c144
-rw-r--r--drivers/fmc/fmc-core.c2
-rw-r--r--drivers/fpga/altera-ps-spi.c2
-rw-r--r--drivers/gpio/gpio-aspeed.c2
-rw-r--r--drivers/gpio/gpio-pci-idio-16.c8
-rw-r--r--drivers/gpio/gpio-pcie-idio-24.c22
-rw-r--r--drivers/gpio/gpiolib-of.c4
-rw-r--r--drivers/gpio/gpiolib.c7
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu.h4
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c117
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c9
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c12
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c16
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_object.c18
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c3
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c2
-rw-r--r--drivers/gpu/drm/amd/amdgpu/cik_sdma.c2
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c7
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c7
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c14
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c61
-rw-r--r--drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c2
-rw-r--r--drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c2
-rw-r--r--drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c2
-rw-r--r--drivers/gpu/drm/amd/amdgpu/si.c67
-rw-r--r--drivers/gpu/drm/amd/amdgpu/si_dpm.c4
-rw-r--r--[-rwxr-xr-x]drivers/gpu/drm/amd/amdgpu/vce_v4_0.c0
-rw-r--r--drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c3
-rw-r--r--drivers/gpu/drm/amd/amdkfd/Kconfig1
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_chardev.c17
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c99
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c7
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c5
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c54
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc.c2
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_link.c13
-rw-r--r--drivers/gpu/drm/amd/display/dc/dc_link.h2
-rw-r--r--drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c2
-rw-r--r--drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c67
-rw-r--r--drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c13
-rw-r--r--drivers/gpu/drm/amd/include/atomfirmware.h12
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-rw-r--r--drivers/usb/typec/ucsi/Makefile2
-rw-r--r--drivers/usb/typec/ucsi/ucsi.c2
-rw-r--r--drivers/usb/usbip/stub_main.c5
-rw-r--r--drivers/usb/usbip/usbip_common.h2
-rw-r--r--drivers/usb/usbip/usbip_event.c4
-rw-r--r--drivers/usb/usbip/vhci_hcd.c13
-rw-r--r--drivers/vfio/pci/vfio_pci.c35
-rw-r--r--drivers/vfio/pci/vfio_pci_private.h19
-rw-r--r--drivers/vfio/pci/vfio_pci_rdwr.c184
-rw-r--r--drivers/vfio/vfio_iommu_type1.c151
-rw-r--r--drivers/vhost/net.c8
-rw-r--r--drivers/vhost/vhost.c74
-rw-r--r--drivers/vhost/vhost.h8
-rw-r--r--drivers/vhost/vsock.c11
-rw-r--r--drivers/video/Kconfig8
-rw-r--r--drivers/video/console/Kconfig6
-rw-r--r--drivers/video/console/sticore.c4
-rw-r--r--drivers/video/fbdev/Kconfig8
-rw-r--r--drivers/video/fbdev/amba-clcd.c3
-rw-r--r--drivers/video/fbdev/atmel_lcdfb.c31
-rw-r--r--drivers/video/fbdev/aty/aty128fb.c2
-rw-r--r--drivers/video/fbdev/aty/mach64_ct.c2
-rw-r--r--drivers/video/fbdev/aty/radeon_base.c21
-rw-r--r--drivers/video/fbdev/au1100fb.c9
-rw-r--r--drivers/video/fbdev/fsl-diu-fb.c6
-rw-r--r--drivers/video/fbdev/matrox/matroxfb_crtc2.c5
-rw-r--r--drivers/video/fbdev/offb.c2
-rw-r--r--drivers/video/fbdev/s3c-fb.c168
-rw-r--r--drivers/video/fbdev/sis/init.h76
-rw-r--r--drivers/video/fbdev/sis/init301.c326
-rw-r--r--drivers/video/fbdev/sis/init301.h320
-rw-r--r--drivers/video/fbdev/sis/sis.h131
-rw-r--r--drivers/video/fbdev/sis/sis_main.c51
-rw-r--r--drivers/video/fbdev/sis/sis_main.h117
-rw-r--r--drivers/video/fbdev/smscufx.c59
-rw-r--r--drivers/video/fbdev/ssd1307fb.c3
-rw-r--r--drivers/video/fbdev/stifb.c6
-rw-r--r--drivers/video/fbdev/udlfb.c39
-rw-r--r--drivers/video/fbdev/vermilion/vermilion.c2
-rw-r--r--drivers/video/fbdev/via/via_aux_sii164.c2
-rw-r--r--drivers/video/fbdev/via/via_aux_vt1631.c2
-rw-r--r--drivers/video/fbdev/via/via_aux_vt1632.c2
-rw-r--r--drivers/video/fbdev/via/via_aux_vt1636.c2
-rw-r--r--drivers/video/of_display_timing.c20
-rw-r--r--drivers/virt/vboxguest/vboxguest_core.c70
-rw-r--r--drivers/virt/vboxguest/vboxguest_core.h9
-rw-r--r--drivers/virt/vboxguest/vboxguest_linux.c19
-rw-r--r--drivers/virt/vboxguest/vboxguest_utils.c17
-rw-r--r--drivers/virtio/virtio_balloon.c6
-rw-r--r--drivers/virtio/virtio_ring.c1
-rw-r--r--drivers/watchdog/Kconfig12
-rw-r--r--drivers/watchdog/Makefile1
-rw-r--r--drivers/watchdog/ar7_wdt.c14
-rw-r--r--drivers/watchdog/asm9260_wdt.c8
-rw-r--r--drivers/watchdog/aspeed_wdt.c20
-rw-r--r--drivers/watchdog/at91rm9200_wdt.c5
-rw-r--r--drivers/watchdog/at91sam9_wdt.c5
-rw-r--r--drivers/watchdog/at91sam9_wdt.h5
-rw-r--r--drivers/watchdog/bcm2835_wdt.c5
-rw-r--r--drivers/watchdog/bcm47xx_wdt.c5
-rw-r--r--drivers/watchdog/bcm63xx_wdt.c5
-rw-r--r--drivers/watchdog/bcm7038_wdt.c12
-rw-r--r--drivers/watchdog/bcm_kona_wdt.c9
-rw-r--r--drivers/watchdog/cadence_wdt.c5
-rw-r--r--drivers/watchdog/coh901327_wdt.c18
-rw-r--r--drivers/watchdog/da9052_wdt.c6
-rw-r--r--drivers/watchdog/da9055_wdt.c6
-rw-r--r--drivers/watchdog/da9062_wdt.c10
-rw-r--r--drivers/watchdog/da9063_wdt.c5
-rw-r--r--drivers/watchdog/davinci_wdt.c15
-rw-r--r--drivers/watchdog/digicolor_wdt.c5
-rw-r--r--drivers/watchdog/dw_wdt.c32
-rw-r--r--drivers/watchdog/ebc-c384_wdt.c1
-rw-r--r--drivers/watchdog/f71808e_wdt.c2
-rw-r--r--drivers/watchdog/gpio_wdt.c4
-rw-r--r--drivers/watchdog/hpwdt.c312
-rw-r--r--drivers/watchdog/imx2_wdt.c8
-rw-r--r--drivers/watchdog/lpc18xx_wdt.c2
-rw-r--r--drivers/watchdog/mei_wdt.c12
-rw-r--r--drivers/watchdog/mena21_wdt.c4
-rw-r--r--drivers/watchdog/meson_gxbb_wdt.c50
-rw-r--r--drivers/watchdog/meson_wdt.c2
-rw-r--r--drivers/watchdog/mtk_wdt.c13
-rw-r--r--drivers/watchdog/mtx-1_wdt.c11
-rw-r--r--drivers/watchdog/npcm_wdt.c254
-rw-r--r--drivers/watchdog/of_xilinx_wdt.c8
-rw-r--r--drivers/watchdog/omap_wdt.c4
-rw-r--r--drivers/watchdog/pnx4008_wdt.c2
-rw-r--r--drivers/watchdog/renesas_wdt.c93
-rw-r--r--drivers/watchdog/sama5d4_wdt.c6
-rw-r--r--drivers/watchdog/sch311x_wdt.c2
-rw-r--r--drivers/watchdog/sirfsoc_wdt.c2
-rw-r--r--drivers/watchdog/sprd_wdt.c4
-rw-r--r--drivers/watchdog/st_lpc_wdt.c6
-rw-r--r--drivers/watchdog/sunxi_wdt.c2
-rw-r--r--drivers/watchdog/tangox_wdt.c6
-rw-r--r--drivers/watchdog/tegra_wdt.c10
-rw-r--r--drivers/watchdog/uniphier_wdt.c15
-rw-r--r--drivers/watchdog/w83977f_wdt.c2
-rw-r--r--drivers/watchdog/wafer5823wdt.c2
-rw-r--r--drivers/watchdog/wm831x_wdt.c5
-rw-r--r--drivers/watchdog/wm8350_wdt.c5
-rw-r--r--drivers/xen/xen-acpi-processor.c30
-rw-r--r--drivers/xen/xen-pciback/conf_space_quirks.c2
-rw-r--r--drivers/xen/xen-pciback/pci_stub.c8
-rw-r--r--drivers/xen/xenbus/xenbus_dev_frontend.c19
-rw-r--r--drivers/xen/xenbus/xenbus_xs.c4
1912 files changed, 67582 insertions, 44907 deletions
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 76fb96966f7b..2f2e737be0f8 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -2123,6 +2123,25 @@ static int __init intel_opregion_present(void)
return opregion;
}
+static bool dmi_is_desktop(void)
+{
+ const char *chassis_type;
+
+ chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
+ if (!chassis_type)
+ return false;
+
+ if (!strcmp(chassis_type, "3") || /* 3: Desktop */
+ !strcmp(chassis_type, "4") || /* 4: Low Profile Desktop */
+ !strcmp(chassis_type, "5") || /* 5: Pizza Box */
+ !strcmp(chassis_type, "6") || /* 6: Mini Tower */
+ !strcmp(chassis_type, "7") || /* 7: Tower */
+ !strcmp(chassis_type, "11")) /* 11: Main Server Chassis */
+ return true;
+
+ return false;
+}
+
int acpi_video_register(void)
{
int ret = 0;
@@ -2143,8 +2162,12 @@ int acpi_video_register(void)
* win8 ready (where we also prefer the native backlight driver, so
* normally the acpi_video code should not register there anyways).
*/
- if (only_lcd == -1)
- only_lcd = acpi_osi_is_win8();
+ if (only_lcd == -1) {
+ if (dmi_is_desktop() && acpi_osi_is_win8())
+ only_lcd = true;
+ else
+ only_lcd = false;
+ }
dmi_check_system(video_dmi_table);
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index ebb626ffb5fa..4bde16fb97d8 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -12,23 +12,64 @@
#define pr_fmt(fmt) "ACPI: watchdog: " fmt
#include <linux/acpi.h>
+#include <linux/dmi.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include "internal.h"
+static const struct dmi_system_id acpi_watchdog_skip[] = {
+ {
+ /*
+ * On Lenovo Z50-70 there are two issues with the WDAT
+ * table. First some of the instructions use RTC SRAM
+ * to store persistent information. This does not work well
+ * with Linux RTC driver. Second, more important thing is
+ * that the instructions do not actually reset the system.
+ *
+ * On this particular system iTCO_wdt seems to work just
+ * fine so we prefer that over WDAT for now.
+ *
+ * See also https://bugzilla.kernel.org/show_bug.cgi?id=199033.
+ */
+ .ident = "Lenovo Z50-70",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20354"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Z50-70"),
+ },
+ },
+ {}
+};
+
+static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void)
+{
+ const struct acpi_table_wdat *wdat = NULL;
+ acpi_status status;
+
+ if (acpi_disabled)
+ return NULL;
+
+ if (dmi_check_system(acpi_watchdog_skip))
+ return NULL;
+
+ status = acpi_get_table(ACPI_SIG_WDAT, 0,
+ (struct acpi_table_header **)&wdat);
+ if (ACPI_FAILURE(status)) {
+ /* It is fine if there is no WDAT */
+ return NULL;
+ }
+
+ return wdat;
+}
+
/**
* Returns true if this system should prefer ACPI based watchdog instead of
* the native one (which are typically the same hardware).
*/
bool acpi_has_watchdog(void)
{
- struct acpi_table_header hdr;
-
- if (acpi_disabled)
- return false;
-
- return ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_WDAT, 0, &hdr));
+ return !!acpi_watchdog_get_wdat();
}
EXPORT_SYMBOL_GPL(acpi_has_watchdog);
@@ -41,12 +82,10 @@ void __init acpi_watchdog_init(void)
struct platform_device *pdev;
struct resource *resources;
size_t nresources = 0;
- acpi_status status;
int i;
- status = acpi_get_table(ACPI_SIG_WDAT, 0,
- (struct acpi_table_header **)&wdat);
- if (ACPI_FAILURE(status)) {
+ wdat = acpi_watchdog_get_wdat();
+ if (!wdat) {
/* It is fine if there is no WDAT */
return;
}
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 9e702bc4960f..7a3a541046ed 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -34,6 +34,7 @@
struct iort_its_msi_chip {
struct list_head list;
struct fwnode_handle *fw_node;
+ phys_addr_t base_addr;
u32 translation_id;
};
@@ -156,14 +157,16 @@ static LIST_HEAD(iort_msi_chip_list);
static DEFINE_SPINLOCK(iort_msi_chip_lock);
/**
- * iort_register_domain_token() - register domain token and related ITS ID
- * to the list from where we can get it back later on.
+ * iort_register_domain_token() - register domain token along with related
+ * ITS ID and base address to the list from where we can get it back later on.
* @trans_id: ITS ID.
+ * @base: ITS base address.
* @fw_node: Domain token.
*
* Returns: 0 on success, -ENOMEM if no memory when allocating list element
*/
-int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node)
+int iort_register_domain_token(int trans_id, phys_addr_t base,
+ struct fwnode_handle *fw_node)
{
struct iort_its_msi_chip *its_msi_chip;
@@ -173,6 +176,7 @@ int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node)
its_msi_chip->fw_node = fw_node;
its_msi_chip->translation_id = trans_id;
+ its_msi_chip->base_addr = base;
spin_lock(&iort_msi_chip_lock);
list_add(&its_msi_chip->list, &iort_msi_chip_list);
@@ -569,6 +573,24 @@ int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id)
return -ENODEV;
}
+static int __maybe_unused iort_find_its_base(u32 its_id, phys_addr_t *base)
+{
+ struct iort_its_msi_chip *its_msi_chip;
+ int ret = -ENODEV;
+
+ spin_lock(&iort_msi_chip_lock);
+ list_for_each_entry(its_msi_chip, &iort_msi_chip_list, list) {
+ if (its_msi_chip->translation_id == its_id) {
+ *base = its_msi_chip->base_addr;
+ ret = 0;
+ break;
+ }
+ }
+ spin_unlock(&iort_msi_chip_lock);
+
+ return ret;
+}
+
/**
* iort_dev_find_its_id() - Find the ITS identifier for a device
* @dev: The device.
@@ -754,6 +776,24 @@ static inline bool iort_iommu_driver_enabled(u8 type)
}
#ifdef CONFIG_IOMMU_API
+static struct acpi_iort_node *iort_get_msi_resv_iommu(struct device *dev)
+{
+ struct acpi_iort_node *iommu;
+ struct iommu_fwspec *fwspec = dev->iommu_fwspec;
+
+ iommu = iort_get_iort_node(fwspec->iommu_fwnode);
+
+ if (iommu && (iommu->type == ACPI_IORT_NODE_SMMU_V3)) {
+ struct acpi_iort_smmu_v3 *smmu;
+
+ smmu = (struct acpi_iort_smmu_v3 *)iommu->node_data;
+ if (smmu->model == ACPI_IORT_SMMU_V3_HISILICON_HI161X)
+ return iommu;
+ }
+
+ return NULL;
+}
+
static inline const struct iommu_ops *iort_fwspec_iommu_ops(
struct iommu_fwspec *fwspec)
{
@@ -770,6 +810,69 @@ static inline int iort_add_device_replay(const struct iommu_ops *ops,
return err;
}
+
+/**
+ * iort_iommu_msi_get_resv_regions - Reserved region driver helper
+ * @dev: Device from iommu_get_resv_regions()
+ * @head: Reserved region list from iommu_get_resv_regions()
+ *
+ * Returns: Number of msi reserved regions on success (0 if platform
+ * doesn't require the reservation or no associated msi regions),
+ * appropriate error value otherwise. The ITS interrupt translation
+ * spaces (ITS_base + SZ_64K, SZ_64K) associated with the device
+ * are the msi reserved regions.
+ */
+int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
+{
+ struct acpi_iort_its_group *its;
+ struct acpi_iort_node *iommu_node, *its_node = NULL;
+ int i, resv = 0;
+
+ iommu_node = iort_get_msi_resv_iommu(dev);
+ if (!iommu_node)
+ return 0;
+
+ /*
+ * Current logic to reserve ITS regions relies on HW topologies
+ * where a given PCI or named component maps its IDs to only one
+ * ITS group; if a PCI or named component can map its IDs to
+ * different ITS groups through IORT mappings this function has
+ * to be reworked to ensure we reserve regions for all ITS groups
+ * a given PCI or named component may map IDs to.
+ */
+
+ for (i = 0; i < dev->iommu_fwspec->num_ids; i++) {
+ its_node = iort_node_map_id(iommu_node,
+ dev->iommu_fwspec->ids[i],
+ NULL, IORT_MSI_TYPE);
+ if (its_node)
+ break;
+ }
+
+ if (!its_node)
+ return 0;
+
+ /* Move to ITS specific data */
+ its = (struct acpi_iort_its_group *)its_node->node_data;
+
+ for (i = 0; i < its->its_count; i++) {
+ phys_addr_t base;
+
+ if (!iort_find_its_base(its->identifiers[i], &base)) {
+ int prot = IOMMU_WRITE | IOMMU_NOEXEC | IOMMU_MMIO;
+ struct iommu_resv_region *region;
+
+ region = iommu_alloc_resv_region(base + SZ_64K, SZ_64K,
+ prot, IOMMU_RESV_MSI);
+ if (region) {
+ list_add_tail(&region->list, head);
+ resv++;
+ }
+ }
+ }
+
+ return (resv == its->its_count) ? resv : -ENODEV;
+}
#else
static inline const struct iommu_ops *iort_fwspec_iommu_ops(
struct iommu_fwspec *fwspec)
@@ -777,6 +880,8 @@ static inline const struct iommu_ops *iort_fwspec_iommu_ops(
static inline int iort_add_device_replay(const struct iommu_ops *ops,
struct device *dev)
{ return 0; }
+int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
+{ return 0; }
#endif
static int iort_iommu_xlate(struct device *dev, struct acpi_iort_node *node,
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index e1eee7a60fad..f1cc4f9d31cd 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -635,4 +635,26 @@ module_param_call(lid_init_state,
NULL, 0644);
MODULE_PARM_DESC(lid_init_state, "Behavior for reporting LID initial state");
-module_acpi_driver(acpi_button_driver);
+static int acpi_button_register_driver(struct acpi_driver *driver)
+{
+ /*
+ * Modules such as nouveau.ko and i915.ko have a link time dependency
+ * on acpi_lid_open(), and would therefore not be loadable on ACPI
+ * capable kernels booted in non-ACPI mode if the return value of
+ * acpi_bus_register_driver() is returned from here with ACPI disabled
+ * when this driver is built as a module.
+ */
+ if (acpi_disabled)
+ return 0;
+
+ return acpi_bus_register_driver(driver);
+}
+
+static void acpi_button_unregister_driver(struct acpi_driver *driver)
+{
+ if (!acpi_disabled)
+ acpi_bus_unregister_driver(driver);
+}
+
+module_driver(acpi_button_driver, acpi_button_register_driver,
+ acpi_button_unregister_driver);
diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c
index c68e72414a67..e967c1173ba3 100644
--- a/drivers/acpi/custom_method.c
+++ b/drivers/acpi/custom_method.c
@@ -94,7 +94,7 @@ static void __exit acpi_custom_method_exit(void)
{
if (cm_dentry)
debugfs_remove(cm_dentry);
- }
+}
module_init(acpi_custom_method_init);
module_exit(acpi_custom_method_exit);
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 6cf4988206f2..3563103590c6 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -219,7 +219,7 @@ fan_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state)
return fan_set_state_acpi4(device, state);
else
return fan_set_state(device, state);
- }
+}
static const struct thermal_cooling_device_ops fan_cooling_ops = {
.get_max_state = fan_get_max_state,
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index eb09ef55c38a..e2235ed3e4be 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -23,6 +23,7 @@
#include <linux/io.h>
#include <linux/nd.h>
#include <asm/cacheflush.h>
+#include <acpi/nfit.h>
#include "nfit.h"
/*
@@ -35,16 +36,6 @@ static bool force_enable_dimms;
module_param(force_enable_dimms, bool, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(force_enable_dimms, "Ignore _STA (ACPI DIMM device) status");
-static unsigned int scrub_timeout = NFIT_ARS_TIMEOUT;
-module_param(scrub_timeout, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(scrub_timeout, "Initial scrub timeout in seconds");
-
-/* after three payloads of overflow, it's dead jim */
-static unsigned int scrub_overflow_abort = 3;
-module_param(scrub_overflow_abort, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(scrub_overflow_abort,
- "Number of times we overflow ARS results before abort");
-
static bool disable_vendor_specific;
module_param(disable_vendor_specific, bool, S_IRUGO);
MODULE_PARM_DESC(disable_vendor_specific,
@@ -59,6 +50,10 @@ module_param(default_dsm_family, int, S_IRUGO);
MODULE_PARM_DESC(default_dsm_family,
"Try this DSM type first when identifying NVDIMM family");
+static bool no_init_ars;
+module_param(no_init_ars, bool, 0644);
+MODULE_PARM_DESC(no_init_ars, "Skip ARS run at nfit init time");
+
LIST_HEAD(acpi_descs);
DEFINE_MUTEX(acpi_desc_lock);
@@ -196,7 +191,7 @@ static int xlat_nvdimm_status(struct nvdimm *nvdimm, void *buf, unsigned int cmd
* In the _LSI, _LSR, _LSW case the locked status is
* communicated via the read/write commands
*/
- if (nfit_mem->has_lsi)
+ if (nfit_mem->has_lsr)
break;
if (status >> 16 & ND_CONFIG_LOCKED)
@@ -476,14 +471,14 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
in_buf.buffer.length = call_pkg->nd_size_in;
}
- dev_dbg(dev, "%s:%s cmd: %d: func: %d input length: %d\n",
- __func__, dimm_name, cmd, func, in_buf.buffer.length);
+ dev_dbg(dev, "%s cmd: %d: func: %d input length: %d\n",
+ dimm_name, cmd, func, in_buf.buffer.length);
print_hex_dump_debug("nvdimm in ", DUMP_PREFIX_OFFSET, 4, 4,
in_buf.buffer.pointer,
min_t(u32, 256, in_buf.buffer.length), true);
/* call the BIOS, prefer the named methods over _DSM if available */
- if (nvdimm && cmd == ND_CMD_GET_CONFIG_SIZE && nfit_mem->has_lsi)
+ if (nvdimm && cmd == ND_CMD_GET_CONFIG_SIZE && nfit_mem->has_lsr)
out_obj = acpi_label_info(handle);
else if (nvdimm && cmd == ND_CMD_GET_CONFIG_DATA && nfit_mem->has_lsr) {
struct nd_cmd_get_config_data_hdr *p = buf;
@@ -506,8 +501,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
}
if (!out_obj) {
- dev_dbg(dev, "%s:%s _DSM failed cmd: %s\n", __func__, dimm_name,
- cmd_name);
+ dev_dbg(dev, "%s _DSM failed cmd: %s\n", dimm_name, cmd_name);
return -EINVAL;
}
@@ -528,13 +522,13 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
}
if (out_obj->package.type != ACPI_TYPE_BUFFER) {
- dev_dbg(dev, "%s:%s unexpected output object type cmd: %s type: %d\n",
- __func__, dimm_name, cmd_name, out_obj->type);
+ dev_dbg(dev, "%s unexpected output object type cmd: %s type: %d\n",
+ dimm_name, cmd_name, out_obj->type);
rc = -EINVAL;
goto out;
}
- dev_dbg(dev, "%s:%s cmd: %s output length: %d\n", __func__, dimm_name,
+ dev_dbg(dev, "%s cmd: %s output length: %d\n", dimm_name,
cmd_name, out_obj->buffer.length);
print_hex_dump_debug(cmd_name, DUMP_PREFIX_OFFSET, 4, 4,
out_obj->buffer.pointer,
@@ -546,14 +540,14 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
out_obj->buffer.length - offset);
if (offset + out_size > out_obj->buffer.length) {
- dev_dbg(dev, "%s:%s output object underflow cmd: %s field: %d\n",
- __func__, dimm_name, cmd_name, i);
+ dev_dbg(dev, "%s output object underflow cmd: %s field: %d\n",
+ dimm_name, cmd_name, i);
break;
}
if (in_buf.buffer.length + offset + out_size > buf_len) {
- dev_dbg(dev, "%s:%s output overrun cmd: %s field: %d\n",
- __func__, dimm_name, cmd_name, i);
+ dev_dbg(dev, "%s output overrun cmd: %s field: %d\n",
+ dimm_name, cmd_name, i);
rc = -ENXIO;
goto out;
}
@@ -655,7 +649,7 @@ static bool add_spa(struct acpi_nfit_desc *acpi_desc,
INIT_LIST_HEAD(&nfit_spa->list);
memcpy(nfit_spa->spa, spa, sizeof(*spa));
list_add_tail(&nfit_spa->list, &acpi_desc->spas);
- dev_dbg(dev, "%s: spa index: %d type: %s\n", __func__,
+ dev_dbg(dev, "spa index: %d type: %s\n",
spa->range_index,
spa_type_name(nfit_spa_type(spa)));
return true;
@@ -684,12 +678,38 @@ static bool add_memdev(struct acpi_nfit_desc *acpi_desc,
INIT_LIST_HEAD(&nfit_memdev->list);
memcpy(nfit_memdev->memdev, memdev, sizeof(*memdev));
list_add_tail(&nfit_memdev->list, &acpi_desc->memdevs);
- dev_dbg(dev, "%s: memdev handle: %#x spa: %d dcr: %d flags: %#x\n",
- __func__, memdev->device_handle, memdev->range_index,
+ dev_dbg(dev, "memdev handle: %#x spa: %d dcr: %d flags: %#x\n",
+ memdev->device_handle, memdev->range_index,
memdev->region_index, memdev->flags);
return true;
}
+int nfit_get_smbios_id(u32 device_handle, u16 *flags)
+{
+ struct acpi_nfit_memory_map *memdev;
+ struct acpi_nfit_desc *acpi_desc;
+ struct nfit_mem *nfit_mem;
+
+ mutex_lock(&acpi_desc_lock);
+ list_for_each_entry(acpi_desc, &acpi_descs, list) {
+ mutex_lock(&acpi_desc->init_mutex);
+ list_for_each_entry(nfit_mem, &acpi_desc->dimms, list) {
+ memdev = __to_nfit_memdev(nfit_mem);
+ if (memdev->device_handle == device_handle) {
+ mutex_unlock(&acpi_desc->init_mutex);
+ mutex_unlock(&acpi_desc_lock);
+ *flags = memdev->flags;
+ return memdev->physical_id;
+ }
+ }
+ mutex_unlock(&acpi_desc->init_mutex);
+ }
+ mutex_unlock(&acpi_desc_lock);
+
+ return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(nfit_get_smbios_id);
+
/*
* An implementation may provide a truncated control region if no block windows
* are defined.
@@ -727,7 +747,7 @@ static bool add_dcr(struct acpi_nfit_desc *acpi_desc,
INIT_LIST_HEAD(&nfit_dcr->list);
memcpy(nfit_dcr->dcr, dcr, sizeof_dcr(dcr));
list_add_tail(&nfit_dcr->list, &acpi_desc->dcrs);
- dev_dbg(dev, "%s: dcr index: %d windows: %d\n", __func__,
+ dev_dbg(dev, "dcr index: %d windows: %d\n",
dcr->region_index, dcr->windows);
return true;
}
@@ -754,7 +774,7 @@ static bool add_bdw(struct acpi_nfit_desc *acpi_desc,
INIT_LIST_HEAD(&nfit_bdw->list);
memcpy(nfit_bdw->bdw, bdw, sizeof(*bdw));
list_add_tail(&nfit_bdw->list, &acpi_desc->bdws);
- dev_dbg(dev, "%s: bdw dcr: %d windows: %d\n", __func__,
+ dev_dbg(dev, "bdw dcr: %d windows: %d\n",
bdw->region_index, bdw->windows);
return true;
}
@@ -793,7 +813,7 @@ static bool add_idt(struct acpi_nfit_desc *acpi_desc,
INIT_LIST_HEAD(&nfit_idt->list);
memcpy(nfit_idt->idt, idt, sizeof_idt(idt));
list_add_tail(&nfit_idt->list, &acpi_desc->idts);
- dev_dbg(dev, "%s: idt index: %d num_lines: %d\n", __func__,
+ dev_dbg(dev, "idt index: %d num_lines: %d\n",
idt->interleave_index, idt->line_count);
return true;
}
@@ -833,7 +853,7 @@ static bool add_flush(struct acpi_nfit_desc *acpi_desc,
INIT_LIST_HEAD(&nfit_flush->list);
memcpy(nfit_flush->flush, flush, sizeof_flush(flush));
list_add_tail(&nfit_flush->list, &acpi_desc->flushes);
- dev_dbg(dev, "%s: nfit_flush handle: %d hint_count: %d\n", __func__,
+ dev_dbg(dev, "nfit_flush handle: %d hint_count: %d\n",
flush->device_handle, flush->hint_count);
return true;
}
@@ -846,7 +866,7 @@ static bool add_platform_cap(struct acpi_nfit_desc *acpi_desc,
mask = (1 << (pcap->highest_capability + 1)) - 1;
acpi_desc->platform_cap = pcap->capabilities & mask;
- dev_dbg(dev, "%s: cap: %#x\n", __func__, acpi_desc->platform_cap);
+ dev_dbg(dev, "cap: %#x\n", acpi_desc->platform_cap);
return true;
}
@@ -893,7 +913,7 @@ static void *add_table(struct acpi_nfit_desc *acpi_desc,
return err;
break;
case ACPI_NFIT_TYPE_SMBIOS:
- dev_dbg(dev, "%s: smbios\n", __func__);
+ dev_dbg(dev, "smbios\n");
break;
case ACPI_NFIT_TYPE_CAPABILITIES:
if (!add_platform_cap(acpi_desc, table))
@@ -1250,8 +1270,11 @@ static ssize_t scrub_show(struct device *dev,
if (nd_desc) {
struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc);
+ mutex_lock(&acpi_desc->init_mutex);
rc = sprintf(buf, "%d%s", acpi_desc->scrub_count,
- (work_busy(&acpi_desc->work)) ? "+\n" : "\n");
+ work_busy(&acpi_desc->dwork.work)
+ && !acpi_desc->cancel ? "+\n" : "\n");
+ mutex_unlock(&acpi_desc->init_mutex);
}
device_unlock(dev);
return rc;
@@ -1621,7 +1644,7 @@ void __acpi_nvdimm_notify(struct device *dev, u32 event)
struct nfit_mem *nfit_mem;
struct acpi_nfit_desc *acpi_desc;
- dev_dbg(dev->parent, "%s: %s: event: %d\n", dev_name(dev), __func__,
+ dev_dbg(dev->parent, "%s: event: %d\n", dev_name(dev),
event);
if (event != NFIT_NOTIFY_DIMM_HEALTH) {
@@ -1654,12 +1677,23 @@ static void acpi_nvdimm_notify(acpi_handle handle, u32 event, void *data)
device_unlock(dev->parent);
}
+static bool acpi_nvdimm_has_method(struct acpi_device *adev, char *method)
+{
+ acpi_handle handle;
+ acpi_status status;
+
+ status = acpi_get_handle(adev->handle, method, &handle);
+
+ if (ACPI_SUCCESS(status))
+ return true;
+ return false;
+}
+
static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
struct nfit_mem *nfit_mem, u32 device_handle)
{
struct acpi_device *adev, *adev_dimm;
struct device *dev = acpi_desc->dev;
- union acpi_object *obj;
unsigned long dsm_mask;
const guid_t *guid;
int i;
@@ -1732,25 +1766,15 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
1ULL << i))
set_bit(i, &nfit_mem->dsm_mask);
- obj = acpi_label_info(adev_dimm->handle);
- if (obj) {
- ACPI_FREE(obj);
- nfit_mem->has_lsi = 1;
- dev_dbg(dev, "%s: has _LSI\n", dev_name(&adev_dimm->dev));
- }
-
- obj = acpi_label_read(adev_dimm->handle, 0, 0);
- if (obj) {
- ACPI_FREE(obj);
- nfit_mem->has_lsr = 1;
+ if (acpi_nvdimm_has_method(adev_dimm, "_LSI")
+ && acpi_nvdimm_has_method(adev_dimm, "_LSR")) {
dev_dbg(dev, "%s: has _LSR\n", dev_name(&adev_dimm->dev));
+ nfit_mem->has_lsr = true;
}
- obj = acpi_label_write(adev_dimm->handle, 0, 0, NULL);
- if (obj) {
- ACPI_FREE(obj);
- nfit_mem->has_lsw = 1;
+ if (nfit_mem->has_lsr && acpi_nvdimm_has_method(adev_dimm, "_LSW")) {
dev_dbg(dev, "%s: has _LSW\n", dev_name(&adev_dimm->dev));
+ nfit_mem->has_lsw = true;
}
return 0;
@@ -1839,10 +1863,10 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
cmd_mask |= nfit_mem->dsm_mask & NVDIMM_STANDARD_CMDMASK;
}
- if (nfit_mem->has_lsi)
+ if (nfit_mem->has_lsr) {
set_bit(ND_CMD_GET_CONFIG_SIZE, &cmd_mask);
- if (nfit_mem->has_lsr)
set_bit(ND_CMD_GET_CONFIG_DATA, &cmd_mask);
+ }
if (nfit_mem->has_lsw)
set_bit(ND_CMD_SET_CONFIG_DATA, &cmd_mask);
@@ -2338,7 +2362,7 @@ static int acpi_nfit_blk_region_enable(struct nvdimm_bus *nvdimm_bus,
nvdimm = nd_blk_region_to_dimm(ndbr);
nfit_mem = nvdimm_provider_data(nvdimm);
if (!nfit_mem || !nfit_mem->dcr || !nfit_mem->bdw) {
- dev_dbg(dev, "%s: missing%s%s%s\n", __func__,
+ dev_dbg(dev, "missing%s%s%s\n",
nfit_mem ? "" : " nfit_mem",
(nfit_mem && nfit_mem->dcr) ? "" : " dcr",
(nfit_mem && nfit_mem->bdw) ? "" : " bdw");
@@ -2357,7 +2381,7 @@ static int acpi_nfit_blk_region_enable(struct nvdimm_bus *nvdimm_bus,
mmio->addr.base = devm_nvdimm_memremap(dev, nfit_mem->spa_bdw->address,
nfit_mem->spa_bdw->length, nd_blk_memremap_flags(ndbr));
if (!mmio->addr.base) {
- dev_dbg(dev, "%s: %s failed to map bdw\n", __func__,
+ dev_dbg(dev, "%s failed to map bdw\n",
nvdimm_name(nvdimm));
return -ENOMEM;
}
@@ -2368,8 +2392,8 @@ static int acpi_nfit_blk_region_enable(struct nvdimm_bus *nvdimm_bus,
rc = nfit_blk_init_interleave(mmio, nfit_mem->idt_bdw,
nfit_mem->memdev_bdw->interleave_ways);
if (rc) {
- dev_dbg(dev, "%s: %s failed to init bdw interleave\n",
- __func__, nvdimm_name(nvdimm));
+ dev_dbg(dev, "%s failed to init bdw interleave\n",
+ nvdimm_name(nvdimm));
return rc;
}
@@ -2380,7 +2404,7 @@ static int acpi_nfit_blk_region_enable(struct nvdimm_bus *nvdimm_bus,
mmio->addr.base = devm_nvdimm_ioremap(dev, nfit_mem->spa_dcr->address,
nfit_mem->spa_dcr->length);
if (!mmio->addr.base) {
- dev_dbg(dev, "%s: %s failed to map dcr\n", __func__,
+ dev_dbg(dev, "%s failed to map dcr\n",
nvdimm_name(nvdimm));
return -ENOMEM;
}
@@ -2391,15 +2415,15 @@ static int acpi_nfit_blk_region_enable(struct nvdimm_bus *nvdimm_bus,
rc = nfit_blk_init_interleave(mmio, nfit_mem->idt_dcr,
nfit_mem->memdev_dcr->interleave_ways);
if (rc) {
- dev_dbg(dev, "%s: %s failed to init dcr interleave\n",
- __func__, nvdimm_name(nvdimm));
+ dev_dbg(dev, "%s failed to init dcr interleave\n",
+ nvdimm_name(nvdimm));
return rc;
}
rc = acpi_nfit_blk_get_flags(nd_desc, nvdimm, nfit_blk);
if (rc < 0) {
- dev_dbg(dev, "%s: %s failed get DIMM flags\n",
- __func__, nvdimm_name(nvdimm));
+ dev_dbg(dev, "%s failed get DIMM flags\n",
+ nvdimm_name(nvdimm));
return rc;
}
@@ -2449,7 +2473,8 @@ static int ars_start(struct acpi_nfit_desc *acpi_desc, struct nfit_spa *nfit_spa
memset(&ars_start, 0, sizeof(ars_start));
ars_start.address = spa->address;
ars_start.length = spa->length;
- ars_start.flags = acpi_desc->ars_start_flags;
+ if (test_bit(ARS_SHORT, &nfit_spa->ars_state))
+ ars_start.flags = ND_ARS_RETURN_PREV_DATA;
if (nfit_spa_type(spa) == NFIT_SPA_PM)
ars_start.type = ND_ARS_PERSISTENT;
else if (nfit_spa_type(spa) == NFIT_SPA_VOLATILE)
@@ -2491,16 +2516,62 @@ static int ars_get_status(struct acpi_nfit_desc *acpi_desc)
int rc, cmd_rc;
rc = nd_desc->ndctl(nd_desc, NULL, ND_CMD_ARS_STATUS, ars_status,
- acpi_desc->ars_status_size, &cmd_rc);
+ acpi_desc->max_ars, &cmd_rc);
if (rc < 0)
return rc;
return cmd_rc;
}
-static int ars_status_process_records(struct acpi_nfit_desc *acpi_desc,
- struct nd_cmd_ars_status *ars_status)
+static void ars_complete(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_spa *nfit_spa)
+{
+ struct nd_cmd_ars_status *ars_status = acpi_desc->ars_status;
+ struct acpi_nfit_system_address *spa = nfit_spa->spa;
+ struct nd_region *nd_region = nfit_spa->nd_region;
+ struct device *dev;
+
+ if ((ars_status->address >= spa->address && ars_status->address
+ < spa->address + spa->length)
+ || (ars_status->address < spa->address)) {
+ /*
+ * Assume that if a scrub starts at an offset from the
+ * start of nfit_spa that we are in the continuation
+ * case.
+ *
+ * Otherwise, if the scrub covers the spa range, mark
+ * any pending request complete.
+ */
+ if (ars_status->address + ars_status->length
+ >= spa->address + spa->length)
+ /* complete */;
+ else
+ return;
+ } else
+ return;
+
+ if (test_bit(ARS_DONE, &nfit_spa->ars_state))
+ return;
+
+ if (!test_and_clear_bit(ARS_REQ, &nfit_spa->ars_state))
+ return;
+
+ if (nd_region) {
+ dev = nd_region_dev(nd_region);
+ nvdimm_region_notify(nd_region, NVDIMM_REVALIDATE_POISON);
+ } else
+ dev = acpi_desc->dev;
+
+ dev_dbg(dev, "ARS: range %d %s complete\n", spa->range_index,
+ test_bit(ARS_SHORT, &nfit_spa->ars_state)
+ ? "short" : "long");
+ clear_bit(ARS_SHORT, &nfit_spa->ars_state);
+ set_bit(ARS_DONE, &nfit_spa->ars_state);
+}
+
+static int ars_status_process_records(struct acpi_nfit_desc *acpi_desc)
{
struct nvdimm_bus *nvdimm_bus = acpi_desc->nvdimm_bus;
+ struct nd_cmd_ars_status *ars_status = acpi_desc->ars_status;
int rc;
u32 i;
@@ -2579,7 +2650,7 @@ static int acpi_nfit_init_mapping(struct acpi_nfit_desc *acpi_desc,
struct acpi_nfit_system_address *spa = nfit_spa->spa;
struct nd_blk_region_desc *ndbr_desc;
struct nfit_mem *nfit_mem;
- int blk_valid = 0, rc;
+ int rc;
if (!nvdimm) {
dev_err(acpi_desc->dev, "spa%d dimm: %#x not found\n",
@@ -2599,15 +2670,14 @@ static int acpi_nfit_init_mapping(struct acpi_nfit_desc *acpi_desc,
if (!nfit_mem || !nfit_mem->bdw) {
dev_dbg(acpi_desc->dev, "spa%d %s missing bdw\n",
spa->range_index, nvdimm_name(nvdimm));
- } else {
- mapping->size = nfit_mem->bdw->capacity;
- mapping->start = nfit_mem->bdw->start_address;
- ndr_desc->num_lanes = nfit_mem->bdw->windows;
- blk_valid = 1;
+ break;
}
+ mapping->size = nfit_mem->bdw->capacity;
+ mapping->start = nfit_mem->bdw->start_address;
+ ndr_desc->num_lanes = nfit_mem->bdw->windows;
ndr_desc->mapping = mapping;
- ndr_desc->num_mappings = blk_valid;
+ ndr_desc->num_mappings = 1;
ndbr_desc = to_blk_region_desc(ndr_desc);
ndbr_desc->enable = acpi_nfit_blk_region_enable;
ndbr_desc->do_io = acpi_desc->blk_do_io;
@@ -2655,8 +2725,7 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
return 0;
if (spa->range_index == 0 && !nfit_spa_is_virtual(spa)) {
- dev_dbg(acpi_desc->dev, "%s: detected invalid spa index\n",
- __func__);
+ dev_dbg(acpi_desc->dev, "detected invalid spa index\n");
return 0;
}
@@ -2742,301 +2811,243 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
return rc;
}
-static int ars_status_alloc(struct acpi_nfit_desc *acpi_desc,
- u32 max_ars)
+static int ars_status_alloc(struct acpi_nfit_desc *acpi_desc)
{
struct device *dev = acpi_desc->dev;
struct nd_cmd_ars_status *ars_status;
- if (acpi_desc->ars_status && acpi_desc->ars_status_size >= max_ars) {
- memset(acpi_desc->ars_status, 0, acpi_desc->ars_status_size);
+ if (acpi_desc->ars_status) {
+ memset(acpi_desc->ars_status, 0, acpi_desc->max_ars);
return 0;
}
- if (acpi_desc->ars_status)
- devm_kfree(dev, acpi_desc->ars_status);
- acpi_desc->ars_status = NULL;
- ars_status = devm_kzalloc(dev, max_ars, GFP_KERNEL);
+ ars_status = devm_kzalloc(dev, acpi_desc->max_ars, GFP_KERNEL);
if (!ars_status)
return -ENOMEM;
acpi_desc->ars_status = ars_status;
- acpi_desc->ars_status_size = max_ars;
return 0;
}
-static int acpi_nfit_query_poison(struct acpi_nfit_desc *acpi_desc,
- struct nfit_spa *nfit_spa)
+static int acpi_nfit_query_poison(struct acpi_nfit_desc *acpi_desc)
{
- struct acpi_nfit_system_address *spa = nfit_spa->spa;
int rc;
- if (!nfit_spa->max_ars) {
- struct nd_cmd_ars_cap ars_cap;
-
- memset(&ars_cap, 0, sizeof(ars_cap));
- rc = ars_get_cap(acpi_desc, &ars_cap, nfit_spa);
- if (rc < 0)
- return rc;
- nfit_spa->max_ars = ars_cap.max_ars_out;
- nfit_spa->clear_err_unit = ars_cap.clear_err_unit;
- /* check that the supported scrub types match the spa type */
- if (nfit_spa_type(spa) == NFIT_SPA_VOLATILE &&
- ((ars_cap.status >> 16) & ND_ARS_VOLATILE) == 0)
- return -ENOTTY;
- else if (nfit_spa_type(spa) == NFIT_SPA_PM &&
- ((ars_cap.status >> 16) & ND_ARS_PERSISTENT) == 0)
- return -ENOTTY;
- }
-
- if (ars_status_alloc(acpi_desc, nfit_spa->max_ars))
+ if (ars_status_alloc(acpi_desc))
return -ENOMEM;
rc = ars_get_status(acpi_desc);
+
if (rc < 0 && rc != -ENOSPC)
return rc;
- if (ars_status_process_records(acpi_desc, acpi_desc->ars_status))
+ if (ars_status_process_records(acpi_desc))
return -ENOMEM;
return 0;
}
-static void acpi_nfit_async_scrub(struct acpi_nfit_desc *acpi_desc,
- struct nfit_spa *nfit_spa)
+static int ars_register(struct acpi_nfit_desc *acpi_desc, struct nfit_spa *nfit_spa,
+ int *query_rc)
{
- struct acpi_nfit_system_address *spa = nfit_spa->spa;
- unsigned int overflow_retry = scrub_overflow_abort;
- u64 init_ars_start = 0, init_ars_len = 0;
- struct device *dev = acpi_desc->dev;
- unsigned int tmo = scrub_timeout;
- int rc;
+ int rc = *query_rc;
- if (!nfit_spa->ars_required || !nfit_spa->nd_region)
- return;
-
- rc = ars_start(acpi_desc, nfit_spa);
- /*
- * If we timed out the initial scan we'll still be busy here,
- * and will wait another timeout before giving up permanently.
- */
- if (rc < 0 && rc != -EBUSY)
- return;
+ if (no_init_ars)
+ return acpi_nfit_register_region(acpi_desc, nfit_spa);
- do {
- u64 ars_start, ars_len;
-
- if (acpi_desc->cancel)
- break;
- rc = acpi_nfit_query_poison(acpi_desc, nfit_spa);
- if (rc == -ENOTTY)
- break;
- if (rc == -EBUSY && !tmo) {
- dev_warn(dev, "range %d ars timeout, aborting\n",
- spa->range_index);
- break;
- }
+ set_bit(ARS_REQ, &nfit_spa->ars_state);
+ set_bit(ARS_SHORT, &nfit_spa->ars_state);
+ switch (rc) {
+ case 0:
+ case -EAGAIN:
+ rc = ars_start(acpi_desc, nfit_spa);
if (rc == -EBUSY) {
- /*
- * Note, entries may be appended to the list
- * while the lock is dropped, but the workqueue
- * being active prevents entries being deleted /
- * freed.
- */
- mutex_unlock(&acpi_desc->init_mutex);
- ssleep(1);
- tmo--;
- mutex_lock(&acpi_desc->init_mutex);
- continue;
- }
-
- /* we got some results, but there are more pending... */
- if (rc == -ENOSPC && overflow_retry--) {
- if (!init_ars_len) {
- init_ars_len = acpi_desc->ars_status->length;
- init_ars_start = acpi_desc->ars_status->address;
- }
- rc = ars_continue(acpi_desc);
- }
-
- if (rc < 0) {
- dev_warn(dev, "range %d ars continuation failed\n",
- spa->range_index);
+ *query_rc = rc;
break;
- }
-
- if (init_ars_len) {
- ars_start = init_ars_start;
- ars_len = init_ars_len;
+ } else if (rc == 0) {
+ rc = acpi_nfit_query_poison(acpi_desc);
} else {
- ars_start = acpi_desc->ars_status->address;
- ars_len = acpi_desc->ars_status->length;
+ set_bit(ARS_FAILED, &nfit_spa->ars_state);
+ break;
}
- dev_dbg(dev, "spa range: %d ars from %#llx + %#llx complete\n",
- spa->range_index, ars_start, ars_len);
- /* notify the region about new poison entries */
- nvdimm_region_notify(nfit_spa->nd_region,
- NVDIMM_REVALIDATE_POISON);
+ if (rc == -EAGAIN)
+ clear_bit(ARS_SHORT, &nfit_spa->ars_state);
+ else if (rc == 0)
+ ars_complete(acpi_desc, nfit_spa);
break;
- } while (1);
+ case -EBUSY:
+ case -ENOSPC:
+ break;
+ default:
+ set_bit(ARS_FAILED, &nfit_spa->ars_state);
+ break;
+ }
+
+ if (test_and_clear_bit(ARS_DONE, &nfit_spa->ars_state))
+ set_bit(ARS_REQ, &nfit_spa->ars_state);
+
+ return acpi_nfit_register_region(acpi_desc, nfit_spa);
}
-static void acpi_nfit_scrub(struct work_struct *work)
+static void ars_complete_all(struct acpi_nfit_desc *acpi_desc)
{
- struct device *dev;
- u64 init_scrub_length = 0;
struct nfit_spa *nfit_spa;
- u64 init_scrub_address = 0;
- bool init_ars_done = false;
- struct acpi_nfit_desc *acpi_desc;
- unsigned int tmo = scrub_timeout;
- unsigned int overflow_retry = scrub_overflow_abort;
-
- acpi_desc = container_of(work, typeof(*acpi_desc), work);
- dev = acpi_desc->dev;
-
- /*
- * We scrub in 2 phases. The first phase waits for any platform
- * firmware initiated scrubs to complete and then we go search for the
- * affected spa regions to mark them scanned. In the second phase we
- * initiate a directed scrub for every range that was not scrubbed in
- * phase 1. If we're called for a 'rescan', we harmlessly pass through
- * the first phase, but really only care about running phase 2, where
- * regions can be notified of new poison.
- */
- /* process platform firmware initiated scrubs */
- retry:
- mutex_lock(&acpi_desc->init_mutex);
list_for_each_entry(nfit_spa, &acpi_desc->spas, list) {
- struct nd_cmd_ars_status *ars_status;
- struct acpi_nfit_system_address *spa;
- u64 ars_start, ars_len;
- int rc;
-
- if (acpi_desc->cancel)
- break;
-
- if (nfit_spa->nd_region)
- continue;
-
- if (init_ars_done) {
- /*
- * No need to re-query, we're now just
- * reconciling all the ranges covered by the
- * initial scrub
- */
- rc = 0;
- } else
- rc = acpi_nfit_query_poison(acpi_desc, nfit_spa);
-
- if (rc == -ENOTTY) {
- /* no ars capability, just register spa and move on */
- acpi_nfit_register_region(acpi_desc, nfit_spa);
+ if (test_bit(ARS_FAILED, &nfit_spa->ars_state))
continue;
- }
-
- if (rc == -EBUSY && !tmo) {
- /* fallthrough to directed scrub in phase 2 */
- dev_warn(dev, "timeout awaiting ars results, continuing...\n");
- break;
- } else if (rc == -EBUSY) {
- mutex_unlock(&acpi_desc->init_mutex);
- ssleep(1);
- tmo--;
- goto retry;
- }
+ ars_complete(acpi_desc, nfit_spa);
+ }
+}
- /* we got some results, but there are more pending... */
- if (rc == -ENOSPC && overflow_retry--) {
- ars_status = acpi_desc->ars_status;
- /*
- * Record the original scrub range, so that we
- * can recall all the ranges impacted by the
- * initial scrub.
- */
- if (!init_scrub_length) {
- init_scrub_length = ars_status->length;
- init_scrub_address = ars_status->address;
- }
- rc = ars_continue(acpi_desc);
- if (rc == 0) {
- mutex_unlock(&acpi_desc->init_mutex);
- goto retry;
- }
- }
+static unsigned int __acpi_nfit_scrub(struct acpi_nfit_desc *acpi_desc,
+ int query_rc)
+{
+ unsigned int tmo = acpi_desc->scrub_tmo;
+ struct device *dev = acpi_desc->dev;
+ struct nfit_spa *nfit_spa;
- if (rc < 0) {
- /*
- * Initial scrub failed, we'll give it one more
- * try below...
- */
- break;
- }
+ if (acpi_desc->cancel)
+ return 0;
- /* We got some final results, record completed ranges */
- ars_status = acpi_desc->ars_status;
- if (init_scrub_length) {
- ars_start = init_scrub_address;
- ars_len = ars_start + init_scrub_length;
- } else {
- ars_start = ars_status->address;
- ars_len = ars_status->length;
- }
- spa = nfit_spa->spa;
+ if (query_rc == -EBUSY) {
+ dev_dbg(dev, "ARS: ARS busy\n");
+ return min(30U * 60U, tmo * 2);
+ }
+ if (query_rc == -ENOSPC) {
+ dev_dbg(dev, "ARS: ARS continue\n");
+ ars_continue(acpi_desc);
+ return 1;
+ }
+ if (query_rc && query_rc != -EAGAIN) {
+ unsigned long long addr, end;
- if (!init_ars_done) {
- init_ars_done = true;
- dev_dbg(dev, "init scrub %#llx + %#llx complete\n",
- ars_start, ars_len);
- }
- if (ars_start <= spa->address && ars_start + ars_len
- >= spa->address + spa->length)
- acpi_nfit_register_region(acpi_desc, nfit_spa);
+ addr = acpi_desc->ars_status->address;
+ end = addr + acpi_desc->ars_status->length;
+ dev_dbg(dev, "ARS: %llx-%llx failed (%d)\n", addr, end,
+ query_rc);
}
- /*
- * For all the ranges not covered by an initial scrub we still
- * want to see if there are errors, but it's ok to discover them
- * asynchronously.
- */
+ ars_complete_all(acpi_desc);
list_for_each_entry(nfit_spa, &acpi_desc->spas, list) {
- /*
- * Flag all the ranges that still need scrubbing, but
- * register them now to make data available.
- */
- if (!nfit_spa->nd_region) {
- nfit_spa->ars_required = 1;
- acpi_nfit_register_region(acpi_desc, nfit_spa);
+ if (test_bit(ARS_FAILED, &nfit_spa->ars_state))
+ continue;
+ if (test_bit(ARS_REQ, &nfit_spa->ars_state)) {
+ int rc = ars_start(acpi_desc, nfit_spa);
+
+ clear_bit(ARS_DONE, &nfit_spa->ars_state);
+ dev = nd_region_dev(nfit_spa->nd_region);
+ dev_dbg(dev, "ARS: range %d ARS start (%d)\n",
+ nfit_spa->spa->range_index, rc);
+ if (rc == 0 || rc == -EBUSY)
+ return 1;
+ dev_err(dev, "ARS: range %d ARS failed (%d)\n",
+ nfit_spa->spa->range_index, rc);
+ set_bit(ARS_FAILED, &nfit_spa->ars_state);
}
}
- acpi_desc->init_complete = 1;
+ return 0;
+}
- list_for_each_entry(nfit_spa, &acpi_desc->spas, list)
- acpi_nfit_async_scrub(acpi_desc, nfit_spa);
- acpi_desc->scrub_count++;
- acpi_desc->ars_start_flags = 0;
- if (acpi_desc->scrub_count_state)
- sysfs_notify_dirent(acpi_desc->scrub_count_state);
+static void acpi_nfit_scrub(struct work_struct *work)
+{
+ struct acpi_nfit_desc *acpi_desc;
+ unsigned int tmo;
+ int query_rc;
+
+ acpi_desc = container_of(work, typeof(*acpi_desc), dwork.work);
+ mutex_lock(&acpi_desc->init_mutex);
+ query_rc = acpi_nfit_query_poison(acpi_desc);
+ tmo = __acpi_nfit_scrub(acpi_desc, query_rc);
+ if (tmo) {
+ queue_delayed_work(nfit_wq, &acpi_desc->dwork, tmo * HZ);
+ acpi_desc->scrub_tmo = tmo;
+ } else {
+ acpi_desc->scrub_count++;
+ if (acpi_desc->scrub_count_state)
+ sysfs_notify_dirent(acpi_desc->scrub_count_state);
+ }
+ memset(acpi_desc->ars_status, 0, acpi_desc->max_ars);
mutex_unlock(&acpi_desc->init_mutex);
}
+static void acpi_nfit_init_ars(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_spa *nfit_spa)
+{
+ int type = nfit_spa_type(nfit_spa->spa);
+ struct nd_cmd_ars_cap ars_cap;
+ int rc;
+
+ memset(&ars_cap, 0, sizeof(ars_cap));
+ rc = ars_get_cap(acpi_desc, &ars_cap, nfit_spa);
+ if (rc < 0)
+ return;
+ /* check that the supported scrub types match the spa type */
+ if (type == NFIT_SPA_VOLATILE && ((ars_cap.status >> 16)
+ & ND_ARS_VOLATILE) == 0)
+ return;
+ if (type == NFIT_SPA_PM && ((ars_cap.status >> 16)
+ & ND_ARS_PERSISTENT) == 0)
+ return;
+
+ nfit_spa->max_ars = ars_cap.max_ars_out;
+ nfit_spa->clear_err_unit = ars_cap.clear_err_unit;
+ acpi_desc->max_ars = max(nfit_spa->max_ars, acpi_desc->max_ars);
+ clear_bit(ARS_FAILED, &nfit_spa->ars_state);
+ set_bit(ARS_REQ, &nfit_spa->ars_state);
+}
+
static int acpi_nfit_register_regions(struct acpi_nfit_desc *acpi_desc)
{
struct nfit_spa *nfit_spa;
- int rc;
+ int rc, query_rc;
+
+ list_for_each_entry(nfit_spa, &acpi_desc->spas, list) {
+ set_bit(ARS_FAILED, &nfit_spa->ars_state);
+ switch (nfit_spa_type(nfit_spa->spa)) {
+ case NFIT_SPA_VOLATILE:
+ case NFIT_SPA_PM:
+ acpi_nfit_init_ars(acpi_desc, nfit_spa);
+ break;
+ }
+ }
+
+ /*
+ * Reap any results that might be pending before starting new
+ * short requests.
+ */
+ query_rc = acpi_nfit_query_poison(acpi_desc);
+ if (query_rc == 0)
+ ars_complete_all(acpi_desc);
list_for_each_entry(nfit_spa, &acpi_desc->spas, list)
- if (nfit_spa_type(nfit_spa->spa) == NFIT_SPA_DCR) {
- /* BLK regions don't need to wait for ars results */
+ switch (nfit_spa_type(nfit_spa->spa)) {
+ case NFIT_SPA_VOLATILE:
+ case NFIT_SPA_PM:
+ /* register regions and kick off initial ARS run */
+ rc = ars_register(acpi_desc, nfit_spa, &query_rc);
+ if (rc)
+ return rc;
+ break;
+ case NFIT_SPA_BDW:
+ /* nothing to register */
+ break;
+ case NFIT_SPA_DCR:
+ case NFIT_SPA_VDISK:
+ case NFIT_SPA_VCD:
+ case NFIT_SPA_PDISK:
+ case NFIT_SPA_PCD:
+ /* register known regions that don't support ARS */
rc = acpi_nfit_register_region(acpi_desc, nfit_spa);
if (rc)
return rc;
+ break;
+ default:
+ /* don't register unknown regions */
+ break;
}
- acpi_desc->ars_start_flags = 0;
- if (!acpi_desc->cancel)
- queue_work(nfit_wq, &acpi_desc->work);
+ queue_delayed_work(nfit_wq, &acpi_desc->dwork, 0);
return 0;
}
@@ -3146,8 +3157,7 @@ int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *data, acpi_size sz)
data = add_table(acpi_desc, &prev, data, end);
if (IS_ERR(data)) {
- dev_dbg(dev, "%s: nfit table parsing error: %ld\n", __func__,
- PTR_ERR(data));
+ dev_dbg(dev, "nfit table parsing error: %ld\n", PTR_ERR(data));
rc = PTR_ERR(data);
goto out_unlock;
}
@@ -3172,49 +3182,20 @@ int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *data, acpi_size sz)
}
EXPORT_SYMBOL_GPL(acpi_nfit_init);
-struct acpi_nfit_flush_work {
- struct work_struct work;
- struct completion cmp;
-};
-
-static void flush_probe(struct work_struct *work)
-{
- struct acpi_nfit_flush_work *flush;
-
- flush = container_of(work, typeof(*flush), work);
- complete(&flush->cmp);
-}
-
static int acpi_nfit_flush_probe(struct nvdimm_bus_descriptor *nd_desc)
{
struct acpi_nfit_desc *acpi_desc = to_acpi_nfit_desc(nd_desc);
struct device *dev = acpi_desc->dev;
- struct acpi_nfit_flush_work flush;
- int rc;
- /* bounce the device lock to flush acpi_nfit_add / acpi_nfit_notify */
+ /* Bounce the device lock to flush acpi_nfit_add / acpi_nfit_notify */
device_lock(dev);
device_unlock(dev);
- /* bounce the init_mutex to make init_complete valid */
+ /* Bounce the init_mutex to complete initial registration */
mutex_lock(&acpi_desc->init_mutex);
- if (acpi_desc->cancel || acpi_desc->init_complete) {
- mutex_unlock(&acpi_desc->init_mutex);
- return 0;
- }
-
- /*
- * Scrub work could take 10s of seconds, userspace may give up so we
- * need to be interruptible while waiting.
- */
- INIT_WORK_ONSTACK(&flush.work, flush_probe);
- init_completion(&flush.cmp);
- queue_work(nfit_wq, &flush.work);
mutex_unlock(&acpi_desc->init_mutex);
- rc = wait_for_completion_interruptible(&flush.cmp);
- cancel_work_sync(&flush.work);
- return rc;
+ return 0;
}
static int acpi_nfit_clear_to_send(struct nvdimm_bus_descriptor *nd_desc,
@@ -3233,20 +3214,18 @@ static int acpi_nfit_clear_to_send(struct nvdimm_bus_descriptor *nd_desc,
* just needs guarantees that any ars it initiates are not
* interrupted by any intervening start reqeusts from userspace.
*/
- if (work_busy(&acpi_desc->work))
+ if (work_busy(&acpi_desc->dwork.work))
return -EBUSY;
return 0;
}
-int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, u8 flags)
+int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, unsigned long flags)
{
struct device *dev = acpi_desc->dev;
+ int scheduled = 0, busy = 0;
struct nfit_spa *nfit_spa;
- if (work_busy(&acpi_desc->work))
- return -EBUSY;
-
mutex_lock(&acpi_desc->init_mutex);
if (acpi_desc->cancel) {
mutex_unlock(&acpi_desc->init_mutex);
@@ -3254,19 +3233,32 @@ int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, u8 flags)
}
list_for_each_entry(nfit_spa, &acpi_desc->spas, list) {
- struct acpi_nfit_system_address *spa = nfit_spa->spa;
+ int type = nfit_spa_type(nfit_spa->spa);
- if (nfit_spa_type(spa) != NFIT_SPA_PM)
+ if (type != NFIT_SPA_PM && type != NFIT_SPA_VOLATILE)
+ continue;
+ if (test_bit(ARS_FAILED, &nfit_spa->ars_state))
continue;
- nfit_spa->ars_required = 1;
+ if (test_and_set_bit(ARS_REQ, &nfit_spa->ars_state))
+ busy++;
+ else {
+ if (test_bit(ARS_SHORT, &flags))
+ set_bit(ARS_SHORT, &nfit_spa->ars_state);
+ scheduled++;
+ }
+ }
+ if (scheduled) {
+ queue_delayed_work(nfit_wq, &acpi_desc->dwork, 0);
+ dev_dbg(dev, "ars_scan triggered\n");
}
- acpi_desc->ars_start_flags = flags;
- queue_work(nfit_wq, &acpi_desc->work);
- dev_dbg(dev, "%s: ars_scan triggered\n", __func__);
mutex_unlock(&acpi_desc->init_mutex);
- return 0;
+ if (scheduled)
+ return 0;
+ if (busy)
+ return -EBUSY;
+ return -ENOTTY;
}
void acpi_nfit_desc_init(struct acpi_nfit_desc *acpi_desc, struct device *dev)
@@ -3293,7 +3285,8 @@ void acpi_nfit_desc_init(struct acpi_nfit_desc *acpi_desc, struct device *dev)
INIT_LIST_HEAD(&acpi_desc->dimms);
INIT_LIST_HEAD(&acpi_desc->list);
mutex_init(&acpi_desc->init_mutex);
- INIT_WORK(&acpi_desc->work, acpi_nfit_scrub);
+ acpi_desc->scrub_tmo = 1;
+ INIT_DELAYED_WORK(&acpi_desc->dwork, acpi_nfit_scrub);
}
EXPORT_SYMBOL_GPL(acpi_nfit_desc_init);
@@ -3317,6 +3310,7 @@ void acpi_nfit_shutdown(void *data)
mutex_lock(&acpi_desc->init_mutex);
acpi_desc->cancel = 1;
+ cancel_delayed_work_sync(&acpi_desc->dwork);
mutex_unlock(&acpi_desc->init_mutex);
/*
@@ -3370,8 +3364,8 @@ static int acpi_nfit_add(struct acpi_device *adev)
rc = acpi_nfit_init(acpi_desc, obj->buffer.pointer,
obj->buffer.length);
else
- dev_dbg(dev, "%s invalid type %d, ignoring _FIT\n",
- __func__, (int) obj->type);
+ dev_dbg(dev, "invalid type %d, ignoring _FIT\n",
+ (int) obj->type);
kfree(buf.pointer);
} else
/* skip over the lead-in header table */
@@ -3400,7 +3394,7 @@ static void acpi_nfit_update_notify(struct device *dev, acpi_handle handle)
if (!dev->driver) {
/* dev->driver may be null if we're being removed */
- dev_dbg(dev, "%s: no driver found for dev\n", __func__);
+ dev_dbg(dev, "no driver found for dev\n");
return;
}
@@ -3438,15 +3432,15 @@ static void acpi_nfit_update_notify(struct device *dev, acpi_handle handle)
static void acpi_nfit_uc_error_notify(struct device *dev, acpi_handle handle)
{
struct acpi_nfit_desc *acpi_desc = dev_get_drvdata(dev);
- u8 flags = (acpi_desc->scrub_mode == HW_ERROR_SCRUB_ON) ?
- 0 : ND_ARS_RETURN_PREV_DATA;
+ unsigned long flags = (acpi_desc->scrub_mode == HW_ERROR_SCRUB_ON) ?
+ 0 : 1 << ARS_SHORT;
acpi_nfit_ars_rescan(acpi_desc, flags);
}
void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)
{
- dev_dbg(dev, "%s: event: 0x%x\n", __func__, event);
+ dev_dbg(dev, "event: 0x%x\n", event);
switch (event) {
case NFIT_NOTIFY_UPDATE:
diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c
index b92921439657..e9626bf6ca29 100644
--- a/drivers/acpi/nfit/mce.c
+++ b/drivers/acpi/nfit/mce.c
@@ -51,9 +51,8 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val,
if ((spa->address + spa->length - 1) < mce->addr)
continue;
found_match = 1;
- dev_dbg(dev, "%s: addr in SPA %d (0x%llx,